Worrying about my future

I'm really worried and feeling very gloomy about my future being autistic, specifically about when I come to moving out, getting a house, managing bills, finances, insurance and generally keeping on top of those kind of things. I did receive some degree of help and support during my school life and earlier on in life like having access arrangements and that sort of thing, but the problem is I tend to mask most of the time, at the expense of getting the certain amount of support I need/not asking for help with certain things as I've always been ashamed of that aspect of how I am and would normally feel like a burden. So I basically feel like I'm going to fail and amount to nothing and it's getting really depressing. I hate being like this. I'm a failure.